82202881 has 2 divisors, whose sum is σ = 82202882. Its totient is φ = 82202880.

The previous prime is 82202843. The next prime is 82202927. The reversal of 82202881 is 18820228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46022656 + 36180225 = 6784^2 + 6015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82202881 is a prime.

It is a super-2 number, since 2×82202881² = 13514627289400322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82202801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41101440 + 41101441.

It is an arithmetic number, because the mean of its divisors is an integer number (41101441).

Almost surely, 2^82202881 is an apocalyptic number.

It is an amenable number.

82202881 is a deficient number, since it is larger than the sum of its proper divisors (1).

82202881 is an equidigital number, since it uses as much as digits as its factorization.

82202881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 82202881 is about 9066.5804468940. The cubic root of 82202881 is about 434.8061513523.

The spelling of 82202881 in words is "eighty-two million, two hundred two thousand, eight hundred eighty-one".